In this book, the son of a US Senator has been found, stabbed, in a Tube station. Peter finds himself involved with the Underground, Victorian sewers, and an FBI agent, who was a great insight for me into how the English view American’s obsession with guns.
They also make some progress into their search for the Faceless Man, which introduces a couple of characters that have already recurred in at least the book after this.
What I really do like about these books is the touches in real London – this one included a trip to the Tate Modern, and having just been over there, I had such an easy time seeing everything that happens in the Tube in my mind’s eye. And I still just really like Peter as a character – his reaction to everything that’s happening around him is just great.